Variation and Evolution

Question 1

Classification

Answer 1

Placing objects into groups based on similar characteristics

Question 2

Species

Answer 2

Group of similar organisms that are capable of naturally interbreeding with each other to produce fertile offspring

Question 3

Acquired variation

Answer 3

Not inherited but are learned or developed during life

Question 4

Inherited variation

Answer 4

Controlled by genes

Question 5

Mutations

Answer 5

Spontaneous change in the amount or structure of DNA

Question 6

Recessive allele

Answer 6

If gene is altered change in its sequence of base causes the correct protein to no longer be formed

Question 7

Spontaneous mutation

Answer 7

Occurs naturally when DNA fails to copy itself or fails to repair itself

Question 8

Gene (point) mutation

Answer 8

Change in a single gene

Question 9

Chromosome mutation

Answer 9

Large change in the structure or number of one or more chromosome

Question 10

Evolution

Answer 10

The way in which living things change genetically to produce new forms of life over long periods of time

Question 11

Theory of natural selection

Answer 11

Observations
1. Overbreeding
2. Population number remains constant
Conclusion
1. Struggle in existence

Observations
3. Inherited variation occurs in population
Conclusion
2. Natural selection

Question 12

Speciation

Answer 12

Production of new species as a result of evolution